Wavelength Electronics LDTC2/2E Datasheet And Operating Manual
Text of the manual
Enclosed 2.2 A LD/TEC Controller
LDTC 2/2O
Open Frame 2.2 A LD/TEC Controller
WEV-300*
Thermal Washer & Heatsink
WEV-301*
Thermal Washer, Heatsink, 5 V Fan
WEV-302*
Thermal Washer, Heatsink, 12 V Fan
POWER & STABILITY
Combine the drive power of the WLD3343 laser driver (up
to 2.2 A) with the temperature stab
LDTC2/2 LASER DIODE DRIVER AND TEMPERATURE CONTROLLER
Tset
LIMA
LIMB
ILIM
ISET
J1
J2
J3
COMmon
SENsor-
SENsor+
TEC-
TEC+
COMmon
LDAnode
PDCathode
PDAnode
LDCathode
GND
VS (5-28 V)
VDD (5-12 V)
COMmon
R TC SETpoint
SET T MONitor
ACT T MONitor
LD I MONitor
LD P MONitor
COMmon
R LDSETpoint
COMmon
LD SHD
PD MONitor
COMmon
3
2
1
1
LDTC2/2 LASER DIODE DRIVER AND TEMPERATURE CONTROLLER
RECOMMENDED THERMOELECTRIC TEST
LOAD
For the temperature controller, recommended simulated
thermoelectric and thermistor circuits are shown in Figure 5
and Figure 6. Configuring the temperature controller using
test loads is recommended for setting the thermoelectric
contr
LDTC2/2 LASER DIODE DRIVER AND TEMPERATURE CONTROLLER
PIN DESCRIPTIONS
Table 1. Pin Descriptions and Wire Colors
PIN
NAME
CABLE
COLOR
PIN DESCRIPTION
Connector J1 – WCB300
1 (VDD)
Supply Voltage to Control
Electronics and Laser
Diode
Red
Connect +5 to +12 V between Pins 1 & 3 to power the control electronics
and the outpu
LDTC2/2 LASER DIODE DRIVER AND TEMPERATURE CONTROLLER
Table 2. Monitor & Setpoint Transfer Functions
FUNCTION
EQUATION
DESCRIPTION
Monitor Transfer Functions
Laser Diode Forward Current
Measurement
ILD =
VLD I M
2·RSENSE
Converts voltage output of Laser Diode Current Monitor (Pin 8,
Connector J2) to forward current throug
